Home / 151,209.48-208,669.11-83,231.30

Finding the Fourth Proportional to 151,209.48, 208,669.11 and 83,231.30

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Solution

The fourth proportional to 151,209.48, 208,669.11 and 83,231.30 is: 114,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,209.48 : 208,669.11 = 83,231.30 : x
  2. Step 2: Convert to fraction form
    151,209.48/208,669.11 = 83,231.30/x
  3. Step 3: Cross multiply
    151,209.48x = 208,669.11 × 83,231.30
  4. Step 4: Simplify right side
    151,209.48x = 17,367,800,799.11
  5. Step 5: Solve for x
    x = 17,367,800,799.11/151,209.48
  6. Step 6: Final answer
    x = 114,859.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.